本文介绍了这段代码意味着什么? (JavaScript)的的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
var chatRoom = { 'all': [] };
我是编程新手,我必须经历一些代码。我有一些Java知识,但不是JavaScript。请原谅我提出愚蠢的问题。谢谢! 我的尝试: 没什么尝试。我只需要一些解释。
I'm absolutely new to programming and I have to go through some code. I've some knowledge of Java, but not JavaScript. Pardon me for asking silly questions. Thank you! What I have tried: Nothing much to try. I just need some explanation.
推荐答案它是JSON,它创建了一个名为chatRoom的对象,其中包含一个名为all的属性,该属性的值为[],这意味着一个空数组。所以一旦定义你可以操作数组作为普通的js数组 It's JSON and it creates an object called chatRoom with a property called "all" and the value of that property is [] which means an empty array. So once defined you can manipulate the array as a normal js array var chatRoom = { 'all': [] }; chatRoom.all.push('Hello'); chatRoom.all.push('World'); for (var i = 0; i < chatRoom.all.length; i++) { alert(chatRoom.all[i]); }
请参阅 JavaScript教程 [ ^ ]。
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